731481434 has 4 divisors (see below), whose sum is σ = 1097222154. Its totient is φ = 365740716.

The previous prime is 731481427. The next prime is 731481449. The reversal of 731481434 is 434184137.

731481434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434184137 = 41 ⋅10589857.

It can be written as a sum of positive squares in only one way, i.e., 488277409 + 243204025 = 22097^2 + 15595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 731481394 and 731481403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182870357 + ... + 182870360.

Almost surely, 2^731481434 is an apocalyptic number.

731481434 is a deficient number, since it is larger than the sum of its proper divisors (365740720).

731481434 is a wasteful number, since it uses less digits than its factorization.

731481434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365740719.

The product of its digits is 32256, while the sum is 35.

The square root of 731481434 is about 27045.9134436240. The cubic root of 731481434 is about 901.0200097962.

The spelling of 731481434 in words is "seven hundred thirty-one million, four hundred eighty-one thousand, four hundred thirty-four".